Design, operational experiences and beam results obtained with the SNS H- ion source and LEBT at Berkeley Lab

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The ion source and Low-Energy Transport (LEBT) system that will provide H{sup -} ion beams to the Spallation Neutron Source (SNS)** Front End and the accelerator chain have been developed into a mature unit that fully satisfies the operational requirements through the commissioning and early operating phases of SNS. Compared to the early R&D version, many features of the ion source have been improved, and reliable operation at 6% duty factor has been achieved producing beam currents in the 35-mA range and above. LEBT operation proved that the purely electrostatic focusing principle is well suited to inject the ion beam ... continued below

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13 pages

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Keller, R.; Thomae, R.; Stockli, M. & Welton, R. April 15, 2002.

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Description

The ion source and Low-Energy Transport (LEBT) system that will provide H{sup -} ion beams to the Spallation Neutron Source (SNS)** Front End and the accelerator chain have been developed into a mature unit that fully satisfies the operational requirements through the commissioning and early operating phases of SNS. Compared to the early R&D version, many features of the ion source have been improved, and reliable operation at 6% duty factor has been achieved producing beam currents in the 35-mA range and above. LEBT operation proved that the purely electrostatic focusing principle is well suited to inject the ion beam into the RFQ accelerator, including the steering and pre-chopping functions. This paper will discuss the latest design features of the ion source and LEBT, give performance data for the integrated system, and report on commissioning results obtained with the SNS RFQ and Medium-Energy Beam Transport (MEBT) system. Prospects for further improvements will be outlined in concluding remarks.

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13 pages

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INIS; OSTI as DE00799593

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  • 9th International Symposium on the Production and Neutralization of Negative Ions and Beams, Saclay (FR), 05/30/2002--05/31/2002

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  • Report No.: LBNL--50127
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 799593
  • Archival Resource Key: ark:/67531/metadc743289

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • April 15, 2002

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  • Oct. 19, 2015, 7:39 p.m.

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  • April 4, 2016, 3:05 p.m.

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Keller, R.; Thomae, R.; Stockli, M. & Welton, R. Design, operational experiences and beam results obtained with the SNS H- ion source and LEBT at Berkeley Lab, article, April 15, 2002; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc743289/: accessed October 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.